Home / 5,407.72-8,112.18-2,946.12

Finding the Fourth Proportional to 5,407.72, 8,112.18 and 2,946.12

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Solution

The fourth proportional to 5,407.72, 8,112.18 and 2,946.12 is: 4,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.72 : 8,112.18 = 2,946.12 : x
  2. Step 2: Convert to fraction form
    5,407.72/8,112.18 = 2,946.12/x
  3. Step 3: Cross multiply
    5,407.72x = 8,112.18 × 2,946.12
  4. Step 4: Simplify right side
    5,407.72x = 23,899,455.74
  5. Step 5: Solve for x
    x = 23,899,455.74/5,407.72
  6. Step 6: Final answer
    x = 4,419.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.